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author | Tatsuya Kinoshita <tats@vega.ocn.ne.jp> | 2011-05-04 07:18:09 +0000 |
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committer | Tatsuya Kinoshita <tats@vega.ocn.ne.jp> | 2011-05-04 07:18:09 +0000 |
commit | 5f8e0f8ef9a422691dd72e8a953a42a41478fcb4 (patch) | |
tree | 4b2df4796a534793648b3c4fc532fc36bd0cd525 /libwc/hz.c | |
parent | Releasing debian version 0.3-2.4 (diff) | |
download | w3m-5f8e0f8ef9a422691dd72e8a953a42a41478fcb4.tar.gz w3m-5f8e0f8ef9a422691dd72e8a953a42a41478fcb4.zip |
Releasing debian version 0.5.1-1debian/0.5.1-1
Diffstat (limited to 'libwc/hz.c')
-rw-r--r-- | libwc/hz.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/libwc/hz.c b/libwc/hz.c new file mode 100644 index 0000000..fa96ed2 --- /dev/null +++ b/libwc/hz.c @@ -0,0 +1,161 @@ + +#include "wc.h" +#include "iso2022.h" +#include "hz.h" +#include "wtf.h" +#ifdef USE_UNICODE +#include "ucs.h" +#endif + +Str +wc_conv_from_hz(Str is, wc_ces ces) +{ + Str os; + wc_uchar *sp = (wc_uchar *)is->ptr; + wc_uchar *ep = sp + is->length; + wc_uchar *p; + int state = WC_HZ_NOSTATE; + + for (p = sp; p < ep && *p < 0x80 && *p != WC_C_HZ_TILDA; p++) + ; + if (p == ep) + return is; + os = Strnew_size(is->length); + if (p > sp) + Strcat_charp_n(os, is->ptr, (int)(p - sp)); + + for (; p < ep; p++) { + switch (state) { + case WC_HZ_NOSTATE: + if (*p == WC_C_HZ_TILDA) + state = WC_HZ_TILDA; + else if (WC_ISO_MAP[*p] == WC_ISO_MAP_GR) + state = WC_HZ_MBYTE1_GR; /* GB 2312 ? */ + else if (*p & 0x80) + wtf_push_unknown(os, p, 1); + else + Strcat_char(os, (char)*p); + break; + case WC_HZ_TILDA: + if (*p == WC_C_HZ_SI) { + state = WC_HZ_MBYTE; + break; + } else if (*p == WC_C_HZ_TILDA) + Strcat_char(os, (char)*p); + else if (*p == '\n') + break; + else + wtf_push_unknown(os, p-1, 2); + state = WC_HZ_NOSTATE; + break; + case WC_HZ_TILDA_MB: + if (*p == WC_C_HZ_SO || *p == '\n') { + state = WC_HZ_NOSTATE; + break; + } + else if (WC_ISO_MAP[*p & 0x7f] == WC_ISO_MAP_GL) + wtf_push(os, WC_CCS_GB_2312, ((wc_uint32)*(p-1) << 8) | *p); + else + wtf_push_unknown(os, p-1, 2); + state = WC_HZ_MBYTE; + break; + case WC_HZ_MBYTE: + if (*p == WC_C_HZ_TILDA) + state = WC_HZ_TILDA_MB; + else if (WC_ISO_MAP[*p & 0x7f] == WC_ISO_MAP_GL) + state = WC_HZ_MBYTE1; + else + wtf_push_unknown(os, p, 1); + break; + case WC_HZ_MBYTE1: + if (WC_ISO_MAP[*p & 0x7f] == WC_ISO_MAP_GL) + wtf_push(os, WC_CCS_GB_2312, ((wc_uint32)*(p-1) << 8) | *p); + else + wtf_push_unknown(os, p-1, 2); + state = WC_HZ_MBYTE; + break; + case WC_HZ_MBYTE1_GR: + if (WC_ISO_MAP[*p] == WC_ISO_MAP_GR) + wtf_push(os, WC_CCS_GB_2312, ((wc_uint32)*(p-1) << 8) | *p); + else + wtf_push_unknown(os, p-1, 2); + state = WC_HZ_NOSTATE; + break; + } + } + switch (state) { + case WC_HZ_TILDA: + case WC_HZ_TILDA_MB: + case WC_HZ_MBYTE1: + case WC_HZ_MBYTE1_GR: + wtf_push_unknown(os, p-1, 1); + break; + } + return os; +} + +void +wc_push_to_hz(Str os, wc_wchar_t cc, wc_status *st) +{ + while (1) { + switch (cc.ccs) { + case WC_CCS_US_ASCII: + if (st->gl) { + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, WC_C_HZ_SO); + st->gl = 0; + } + if ((char)cc.code == WC_C_HZ_TILDA) + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, (char)cc.code); + return; + case WC_CCS_GB_2312: + if (! st->gl) { + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, WC_C_HZ_SI); + st->gl = 1; + } + Strcat_char(os, (char)((cc.code >> 8) & 0x7f)); + Strcat_char(os, (char)(cc.code & 0x7f)); + return; + case WC_CCS_UNKNOWN_W: + if (WcOption.no_replace) + return; + if (st->gl) { + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, WC_C_HZ_SO); + st->gl = 0; + } + Strcat_charp(os, WC_REPLACE_W); + return; + case WC_CCS_UNKNOWN: + if (WcOption.no_replace) + return; + if (st->gl) { + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, WC_C_HZ_SO); + st->gl = 0; + } + Strcat_charp(os, WC_REPLACE); + return; + default: +#ifdef USE_UNICODE + if (WcOption.ucs_conv) + cc = wc_any_to_any_ces(cc, st); + else +#endif + cc.ccs = WC_CCS_IS_WIDE(cc.ccs) ? WC_CCS_UNKNOWN_W : WC_CCS_UNKNOWN; + continue; + } + } +} + +void +wc_push_to_hz_end(Str os, wc_status *st) +{ + if (st->gl) { + Strcat_char(os, WC_C_HZ_TILDA); + Strcat_char(os, WC_C_HZ_SO); + st->gl = 0; + } +} |